Idexx Laboratories, Inc.

Yerramilli Vsn Murthy

Robert H Suva

Michael Randolph Atkinson

The invention relates to pharmaceutical compositions that provide sustained-release of a pharmaceutically active compound and to methods of treating or preventing a condition in an animal by administering the pharmaceutical compositions to the animal. When the pharmaceutical compositions are administered to an animal by injection, they form a drug depot that releases the pharmaceutically active compound over time. The pharmaceutical compositions can also be administered orally.

Amino acid vitamin ester compositions for controlled delivery of pharmaceutically active compounds

The present invention provides compositions and methods for extending the release times and lowering the toxicity of pharmacologically active compounds. The compounds comprise a salt of the pharmacologically active compound with a lipophilic counterion and a pharmaceutically acceptable water soluble solvent combined together to form an injectable composition. The lipophilic counterion may be a saturated or unsaturated C-Cfatty acid, and preferably may be a saturated or unsaturated C-Cfatty acid. When injected into a mammal, at least a portion of the composition precipitates and releases the active compound over time. Thus, the composition forms a slowly releasing drug depot of the active compound in the mammal. Therefore, the present invention enables one to provide a controlled dose administration of the active compound for a periods of up to 15 days or even longer. Many compounds can be administered according to the present invention including, but not limited to, tilmicosin, oxytetracycline, metoprolol, fluoxetine, roxithromycin, and turbinafine.

Injectable compositions for the controlled delivery of pharmacologically active compound

The present invention provides compositions and methods for extending the release times and lowering the toxicity of pharmacologically active compounds. The compounds comprise a salt of the pharmacologically active compound with a lipophilic counterion and a pharmaceutically acceptable water soluble solvent combined together to form an injectable composition. The lipophilic counterion may be a saturated or unsaturated C&#x2013;Cfatty acid, and preferably may be a saturated or unsaturated C&#x2013;Cfatty acid. When injected into a mammal, at least a portion of the composition precipitates and releases the active compound over time. Thus, the composition forms a slowly releasing drug depot of the active compound in the mammal. Therefore, the present invention enables one to provide a controlled dose administration of the active compound for a periods of up to 15 days or even longer. Many compounds can be administered according to the present invention including, but not limited to, tilmicosin, oxytetracycline, metoprolol, fluoxetine, roxithromycin, and turbinafine.

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Apex, NC, United States of America

Yerramilli Vsn Murthy